Here is a picture of the Cobra 19 DX IV / ULTRA audio limiter diode that the famous 631 mentioned, as you can see I desoldered one leg incase I decided to put it back (good enough). I did not add a capacitor and resis on DM2 to lower deadkey though I would reccomend that for driving a linear amplifier.I DO NOT RECCOMEND
this next mod because you can damage your radio, and/or add distortion to your audio. This radio is a Cobra 19 ULTRA (cobra19 DX IV without RF gain) which sells at walmart for $35 US dollars. After desoldering the Audio limiter, I neatly spread these 4 inductor coils pictured below which brought my radio from the factory 2.5 watts RMS @13.8 volts, to 7.5 WattsRMS deadkey and swinging 9 wattsRMS. The microphone is an Astatic D104 power mic.
This is not a mod you want to do if your going to drive an amplifier, I did it because its being used "barefoot" and now it has almost 4x the power.
This radio is installed in my brothers car that is used regularly with no problems. The radio has LOUD clear audio, looks and fits great in compact spaces. Unfortunately its a cheap radio so the recieve is garbage (no filtering/noise blank) so you may pickup ignition noise. Still not bad for 35 DOLLARS at walmart!
I can post more info/pics if anyone wants. Good Luck!
- STUNTMAN 311